Kmart Sears Kmart lists same product with two different item numbers and two different prices Hoffman Estates, Illinois

"Kmart sells the same product under 2 different item numbers. I purchased a 3.3 cu. ft. Kenmore compact refrigerator for $139.99 and after I purchased it I noticed it was on sale for $99.99. I contacted Kmart and since it was already shipped they had me go to put in a claim. First they said it was not the same product- that claim was False. Next they said it was "buyer beware" I supplied the ad as well as a copy of my shopping cart Finally they wrote back:

Thank you for contacting Kmart.com regarding your order number 461612827. I understand that you would like us to make the price adjustment for the compact refrigerator and also understand that you do not have the screen shot.

We regret to inform you that we are unable to make price adjustment for the item, we do honor the adjustment only for the same item number as well as same model number, as you have made your purchase for different item number, we are unable to honor your request."